Business Rule Recommendation gist

= Business Rule / Recommendation gist =
 
Let's see if I can create a graphgist for business rules/simple recommendations.

//console

First, lets create the graph:

//setup 
[source,cypher]
----
CREATE (rik:person{name:'Rik'}), (london:city{name:'London'}), (age:age{name:'39'}), (kid:child{name:'Toon'})
CREATE (xbox:console{name:'Xbox 360'})
CREATE london<-[:LIVES_IN]-rik-[:HAS_AGE]->age
CREATE rik-[:HAS_KID]->kid
CREATE rik-[:SHOULD_RECEIVE_PROMO_FOR]->xbox
----

//graph

Hover over the nodes to see the +name+ node property in the Graph above.

It then becomes quite easy to see that this is almost like the equivalent - but a much richer, versatile equivalent of having a traditional "business rule" that would say:

[source]
----
IF
	rik lives in london,
	AND is of age 39
	AND has a kid
THEN
	propose Xbox 360 promo
ELSE
	proceed with something else ;-) ...
----

In graph terms, we would express this as a Cypher query:

[source,cypher]
----
MATCH
	rik:person-[:HAS_AGE]->age:age,
	rik:person-[:LIVES_IN]->london:city,
	rik:person-[:HAS_KID]->kid:child,
	rik:person-[:SHOULD_RECEIVE_PROMO_FOR]->sometoy
WHERE
	rik.name='Rik'
RETURN	
	rik.name, sometoy.name;
----